An Optimized Efficiency Of Linear Irreversible Carnot Like Heat Engine

Abstract

Linear irreversible Carnot like heat engine in which the maximum efficiency is set to be and the minimum efficiency (the efficiency at maximum power) is set to be it is effectively optimized. The study investigated the Carnot like engine under the isothermal expansion and compression parts. In the isothermal expansion the working substance is thermalized with a hot reservoir during which it release some amount of heat to the cold whereas in the isothermal compression is thermalized with cold reservoir and absorbs some amount of heat from hot reservoir and the difference of the heat exchange and the dissipation of the operation would give the net work done. By employing a unified criterion for energy converters, the model of Carnot like engine is effectively optimized and found to yield optimum finite-time thermodynamic quantities. This used to determine its optimized periods, optimum power, efficiency and the scaled quantities. Efficiency-wise the optimized efficiency is better than its value at maximum power, however, power-wise the maximum power is greater than the optimized power. In the range of possibilities, the Carnot heat engine that optimized to give a figure of merit is greater than one. The plotted against is about 1.43 as 0.773, So that the optimized mode of operation is better than its maximum mode of operation for the model